If you could alter the Classic

I would add screen rotation. Sometimes I would like to have the phone on its side with the kick-stand out.
Or since there is more vertical scrolling within web pages, I would like to turn the phone sideways and get a good long trackpad scroll in without accidentally dragging my thumb on the touchscreen.

Bigger trackpad
Trackpad light (or whatever it is called)
Same copy paste functions like BBOS
Passport specs
Better back camera
Bold 9900/Q10 like curves at the top and bottom (Opposed to the candy bar like the Q5)

Knurling on the metal sides to provide a better one handed grip. Light up trackpad. Removable battery (battery life is great but eventually it's gonna wear out). Same screen technology as the Q10. Just bought my classic- still getting used to it.